SC173AMLTRT

Voltage - Input (Max):	5.5V
Supplier Device Package:	10-MLPD (3x3)
Package / Case:	10-VFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	200kHz ~ 1MHz
Current - Output:	3A
Voltage - Output (Max):	5.23V
Voltage - Output (Min/Fixed):	0.75V
Series:	EcoSpeed®
Voltage - Input (Min):	3V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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SC173AMLTRT Voltage Regulator

The SC173AMLTRT is a voltage regulator by NXP Semiconductors. It is categorized as a DC-DC switching regulator type PMIC, designed to convert an input voltage into a regulated output voltage. It has a wide input voltage range, low quiescent current, and fast transient response, making it suitable for a variety of applications.

Features and Benefits

The SC173AMLTRT voltage regulator offers several features and benefits that make it ideal for high-performance applications. It has a wide operating voltage range of 4.5 to 18V, and a wide input voltage range of 4.5 to 25V. It has a low quiescent current of 600 µA, and a fast transient response of 20 µs, making it well-suited for applications requiring high efficiency and fast responses. It also provides an adjustable output voltage range of 0.45V to 6V, and a maximum output current of 2A.

Applications

The SC173AMLTRT voltage regulator is suited for a variety of applications, including wireless power solutions such as Bluetooth and other wireless communication products, mobile phone chargers, battery-powered devices, and LED lighting. It can also be used in industrial and automotive applications, such as LED displays, motor control systems, and power management in industrial control applications.

Working Principle

The SC173AMLTRT voltage regulator works on the principle of pulse-width modulation (PWM). It produces a regulated output voltage from an input voltage, controlling the average value of the output voltage through the adjustment of the duty cycle of the PWM signal. The voltage regulator consists of an internal power MOSFET, along with associated circuitry to control the cycle time and modulation of the power MOSFET, based on the input voltage.When the SC173AMLTRT voltage regulator receives an input voltage, it evaluates the difference between the input voltage and the fixed output voltage. This difference is used to control the PWM frequency and duty cycle, allowing it to adjust the power supplied from the power MOSFET. The output voltage is monitored continuously, and the PWM cycle is adjusted accordingly, in order to maintain the desired output voltage.

Conclusion

The SC173AMLTRT voltage regulator is a highly efficient DC-DC switching regulator PMIC, suitable for a wide range of applications. It has a wide operating voltage range, fast transient response, and low quiescent current, making it well-suited for applications requiring high efficiency and fast responses. It can be used in various applications, such as mobile phone chargers, LED lighting, and industrial and automotive applications. It works on the principle of pulse-width modulation, using an internal power MOSFET and associated circuitry to regulate the output voltage.

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